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discussed in biography

His great trilogy—De Corpore (1655; “Concerning Body”), De Homine (1658; “Concerning Man”), and De Cive (1642; “Concerning the Citizen”)—was his attempt to arrange the various pieces of natural science, as well as psychology and politics, into a hierarchy, ranging from the most general and fundamental to the…

views on a priori knowledge

…by Thomas Hobbes in his De Corpore and adopted in the 20th century by the logical empiricists. According to this theory, statements of necessity can be made a priori because they are merely by-products of our own rules for the use of language. In the 1970s the American philosopher Saul…